Hi Guys

May I know if anyone has tried using the Tamiya TRF419X Touring Car Large Diameter Short Spring Set (#42306) on the TRF419X car? The spring set consists of the following:

a. 1 pair of soft springs;
b. 1 pair of medium springs (which is the stock TRF419X's springs and please correct me if I'm wrong); and
c. 1 pair of hard springs.

May I know how do you find it as compared to XRay regular and 2.5-2.8 progressive springs?

Thank you.